Motor bearing for small household appliance

Abstract

The utility model relates to the technical field of motors of small household appliances, in particular to a motor bearing for small household appliances, which comprises a bearing body, a sound-absorbing anti-falling mechanism is arranged on the inner wall of the bearing body, sealing dustproof mechanisms are arranged on the surface of a ball protecting cover and the inner wall of the bearing body, and a high-bearing-capacity mechanism is arranged in an outer ring. According to the utility model, when the motor bearing is used, the bearing body and a motor rotating shaft can be stably mounted, so that the motor bearing cannot generate noise when being used, and dust can be prevented from entering the surface of the ball body through a gap between the bearing body and the end cover when the motor bearing is used; and in addition, when the motor bearing is used, the bearing capacity between the bearing body and the outer ring can be greatly improved, and the motor bearing is not prone to being damaged after being used for a long time.

Description

Technical Field

[0001] This utility model relates to the field of small household appliance motor technology, specifically a motor bearing for small household appliances. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical bodies, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. Motor bearings, also known as electric motor bearings, are a special type of bearing used in electric motors. Existing motor bearings have some shortcomings in use. In order to meet market needs, a motor bearing for small household appliances is required.

[0003] While existing motor bearing structures provide sufficient support area for the shaft, they fail to consider friction between the bearing and the shaft in their structural design. This results in inadequate sound absorption and anti-detachment performance, leading to noise generation during operation. Furthermore, their insufficient sealing and dustproofing allow dust to enter the ball bearing surface through gaps between the bearing body and end cap, affecting ball rotation speed. Finally, their insufficient load-bearing capacity makes them prone to damage over prolonged use. Utility Model Content

[0004] The purpose of this utility model is to provide a motor bearing for small household appliances to solve the problems mentioned in the background art, such as insufficient sound absorption and anti-detachment effect, insufficient sealing and dust prevention effect, and insufficient load-bearing capacity of motor bearings.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a motor bearing for small household appliances, comprising a bearing body, an outer ring on the surface of the bearing body, the bearing body and the inner wall of the outer ring rotating with each other, end caps on the surfaces of the bearing body and the outer ring, bearing holes penetrating at both ends on the surfaces at the center positions of the bearing body and the outer ring, a ball bearing protective cover inside the bearing body, a sound-absorbing and anti-detachment mechanism on the inner wall of the bearing body, a high load-bearing capacity mechanism consisting of a first reinforcing plate, a second reinforcing plate, reinforcing ribs and a reinforcing cavity, a sealing and dustproof mechanism on the surface of the ball bearing protective cover and the inner wall of the bearing body, the sealing and dustproof mechanism consisting of a positioning groove, a positioning clip, a first rubber pad and a second rubber pad, a high load-bearing capacity mechanism inside the outer ring, and a sound-absorbing and anti-detachment mechanism consisting of a sound-absorbing plate, a fixing groove, sound-absorbing cotton and an anti-detachment plate.

[0006] Preferably, the bearing hole has a top chamfer with a chamfer size of C0.4 at the top and a bottom chamfer with a chamfer size of C0.2 at the bottom. The outer ring surface is fitted with equally spaced fasteners symmetrically distributed around the bearing body. Both the bearing body and the fasteners have a mid-section outer chamfer with a chamfer size of C0.3. The bearing body surface is provided with equally spaced ball bearings, which rotate and engage with the inner walls of the bearing body, outer ring, and ball bearing cover, respectively. The ball bearings are in contact with the inner wall of the outer ring.

[0007] Preferably, the surface of the ball bearing protective cover is threaded with bolts, one end of which passes through the ball bearing protective cover and is threadedly fastened to the inner wall of the bearing body. The inner wall of the bearing body is provided with an oil storage tank for storing oil.

[0008] Preferably, the inner wall of the bearing body is provided with a fixing groove, a sound-absorbing plate is glued inside the fixing groove, a sound-absorbing cotton is glued to the surface of the sound-absorbing plate away from the fixing groove, and an anti-detachment plate for improving the friction between the bearing body and the motor shaft is glued to the surface of the sound-absorbing cotton away from the sound-absorbing plate.

[0009] Preferably, the sealing and dustproof mechanism consists of a positioning slot, a positioning clip, a first rubber pad, and a second rubber pad. The surface of the ball bearing protective cover is equipped with equal-spaced first rubber pads, and the surface of the bearing body is equipped with equal-spaced second rubber pads. The surfaces of the first rubber pad and the second rubber pad are in contact.

[0010] Preferably, the inner wall of the ball bearing protective cover is equipped with positioning clips, and the surface of the bearing body is provided with equally spaced positioning slots, which are engaged with the surface of the positioning clips.

[0011] Preferably, the inner wall of the outer ring is provided with a reinforcing cavity, and the inner wall of the reinforcing cavity is equipped with a first reinforcing plate for improving the load-bearing capacity of the bearing body and the outer ring.

[0012] Preferably, a second reinforcing plate is installed on the inner wall of the reinforcing cavity, and the inner wall of the reinforcing cavity is equipped with equally spaced reinforcing ribs for enhancing the overall strength of the bearing body and the outer ring. The surfaces of the reinforcing ribs are fixed to the inner walls of the first and second reinforcing plates, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the motor bearing for small household appliances not only enables the bearing body to be stably installed between the bearing body and the motor shaft during use, so that the motor bearing will not generate noise during use, and prevents dust from entering the surface of the ball body through the gap between the bearing body and the end cover, thus affecting the rotational speed of the ball body, but also greatly improves the load-bearing capacity between the bearing body and the outer ring during use, so that the motor bearing is not easily damaged during long-term use;

[0014] 1. By setting up a sound-absorbing and anti-detachment mechanism, the noise generated between the motor shaft and the bearing body during operation can be eliminated under the combined action of the sound-absorbing plate on the inner wall of the fixing groove and the sound-absorbing cotton. Under the action of the anti-detachment plate, the fitting accuracy between the bearing body and the motor shaft is improved, making the motor shaft and the bearing body more firmly installed. This realizes the sound-absorbing and anti-detachment function of the motor bearing, so that the bearing body and the motor shaft can be stably installed during use, and the motor bearing will not generate noise during use.

[0015] 2. With the installation of a sealing and dustproof mechanism, the ball bearing protective cover automatically engages with the positioning clip inside the corresponding positioning slot, thus positioning and installing the ball bearing protective cover. At this time, the ball bearing protective cover moves the first rubber pad to contact the surface of the second rubber pad. Under the combined action of the first and second rubber pads, a seal is formed between the bearing body and the ball bearing protective cover. Under the combined action of the second and first rubber pads, dust and impurities are prevented from entering the surface of the ball body, thus realizing the function of sealing and dustproofing the motor bearing. This prevents dust from entering the surface of the ball body through the gap between the bearing body and the end cover during the use of the motor bearing, thereby affecting the rotational speed of the ball body.

[0016] 3. By incorporating a high load-bearing capacity mechanism, the combined action of the first and second reinforcing plates within the reinforced cavity enhances the load-bearing capacity of the bearing body and outer ring. The reinforcing ribs significantly improve the overall strength of the bearing body and outer ring, making them more durable and extending their service life. This achieves the high load-bearing capacity of the motor bearing, thereby greatly increasing the load-bearing capacity between the bearing body and outer ring during use, and preventing damage even after prolonged use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a top view cross-sectional structural diagram of the present invention;

[0019] Figure 3This is an enlarged structural schematic diagram of the main cross-section of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged structural diagram of the sound-absorbing and anti-detachment mechanism;

[0021] Figure 5 For the present utility model Figure 2 Enlarged structural diagram of the central sealing dustproof mechanism;

[0022] Figure 6 This is an enlarged structural schematic diagram of the high load-bearing capacity mechanism of this utility model.

[0023] In the diagram: 1. Bearing body; 101. End cap; 102. Bearing hole; 103. Ball bearing protective cover; 104. Ball bearing body; 105. Bolt; 106. Outer chamfer; 107. Fixing component; 108. Outer ring; 109. Bottom chamfer; 110. Oil reservoir; 111. Top chamfer; 2. Sound absorption and anti-detachment mechanism; 21. Sound absorption plate; 22. Fixing groove; 23. Sound-absorbing cotton; 24. Anti-detachment plate; 3. Sealing and dustproof mechanism; 31. Positioning slot; 32. Positioning clip; 33. First rubber pad; 34. Second rubber pad; 4. High load-bearing capacity mechanism; 41. First reinforcing plate; 42. Second reinforcing plate; 43. Reinforcing rib; 44. Reinforcing cavity. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. In addition, the terms "first", "second", "third", "upper", "lower", "left", "right", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. At the same time, in the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0025] The structure of the motor bearing for small household appliances provided by this utility model is as follows: Figure 1 and Figure 2As shown, the bearing includes a bearing body 1, with an outer ring 108 on its surface. The bearing body 1 and the inner wall of the outer ring 108 rotate with each other. End caps 101 are provided on the surfaces of the bearing body 1 and the outer ring 108. Bearing holes 102 penetrating through both ends are opened at the center positions of the surfaces of the bearing body 1 and the outer ring 108. A top chamfer 111 with a chamfer specification of C0.4 is opened at the top end of the bearing hole 102. A bottom chamfer 109 with a chamfer specification of C0.2 is opened at the bottom end of the bearing hole 102. Equally spaced fasteners 107 are installed on the surface of the outer ring 108, and the fasteners 107 are symmetrically distributed around the circumference of the bearing body 1. Both the bearing body 1 and the fixing member 107 have an outer chamfer 106 on their surfaces. The chamfer specification of the outer chamfer 106 is C0.3. The bearing body 1 has ball bodies 104 with equal spacing on its surface. The bearing body 1 has a ball protective cover 103 inside. The ball bodies 104 rotate with the bearing body 1, the outer ring 108 and the inner wall of the ball protective cover 103 respectively. The ball bodies 104 are in contact with the inner wall of the outer ring 108. The surface of the ball protective cover 103 is threaded with bolts 105. One end of the bolt 105 passes through the ball protective cover 103 and is threadedly fastened to the inner wall of the bearing body 1. The inner wall of the bearing body 1 has an oil reservoir 110 for storing oil.

[0026] Furthermore, such as Figure 2 and Figure 4 As shown, the inner wall of the bearing body 1 is provided with a sound-absorbing and anti-detachment mechanism 2. The sound-absorbing and anti-detachment mechanism 2 consists of a sound-absorbing plate 21, a fixing groove 22, a sound-absorbing cotton 23, and an anti-detachment plate 24. The inner wall of the bearing body 1 is provided with a fixing groove 22. The sound-absorbing plate 21 is glued inside the fixing groove 22. The surface of the sound-absorbing plate 21 away from the fixing groove 22 is glued with a sound-absorbing cotton 23. The surface of the sound-absorbing cotton 23 away from the sound-absorbing plate 21 is glued with an anti-detachment plate 24 for improving the friction between the bearing body 1 and the motor shaft.

[0027] During implementation, the sound-absorbing plate 21 on the inner wall of the fixed groove 22 and the sound-absorbing cotton 23 work together to eliminate the noise generated between the motor shaft and the bearing body 1 during operation. The anti-detachment plate 24 improves the fitting accuracy between the bearing body 1 and the motor shaft, making the motor shaft and the bearing body 1 more firmly installed, so as to realize the function of sound absorption and anti-detachment of the motor bearing.

[0028] Furthermore, such as Figure 2 and Figure 5As shown, a sealing and dustproof mechanism 3 is provided on the surface of the ball bearing protective cover 103 and the inner wall of the bearing body 1. The sealing and dustproof mechanism 3 consists of a positioning groove 31, a positioning clip 32, a first rubber pad 33, and a second rubber pad 34. The surface of the ball bearing protective cover 103 is equipped with equal-spaced first rubber pads 33, and the surface of the bearing body 1 is equipped with equal-spaced second rubber pads 34. The surfaces of the first rubber pads 33 and the second rubber pads 34 are in contact. The inner wall of the ball bearing protective cover 103 is equipped with positioning clips 32, and the surface of the bearing body 1 is provided with equal-spaced positioning grooves 31. The surfaces of the positioning grooves 31 and the positioning clips 32 engage with each other.

[0029] During implementation, the ball bearing protective cover 103 drives the positioning clip 32 to automatically snap into the corresponding positioning slot 31, positioning and installing the ball bearing protective cover 103. At this time, the ball bearing protective cover 103 drives the first rubber pad 33 to move to contact the surface of the second rubber pad 34. Under the combined action of the first rubber pad 33 and the second rubber pad 34, a seal is formed between the bearing body 1 and the ball bearing protective cover 103. Under the combined action of the second rubber pad 34 and the first rubber pad 33, dust and impurities can be prevented from entering the surface of the ball body 104, thereby achieving the function of sealing and dustproofing the motor bearing.

[0030] Furthermore, such as Figure 2 and Figure 6 As shown, a high load-bearing capacity mechanism 4 is provided inside the outer ring 108. The high load-bearing capacity mechanism 4 is composed of a first reinforcing plate 41, a second reinforcing plate 42, reinforcing ribs 43 and a reinforcing cavity 44. The inner wall of the outer ring 108 is provided with a reinforcing cavity 44. The inner wall of the reinforcing cavity 44 is equipped with a first reinforcing plate 41 for improving the load-bearing capacity of the bearing body 1 and the outer ring 108. The inner wall of the reinforcing cavity 44 is equipped with a second reinforcing plate 42. The inner wall of the reinforcing cavity 44 is equipped with equally spaced reinforcing ribs 43 for enhancing the overall strength of the bearing body 1 and the outer ring 108. The surfaces of the reinforcing ribs 43 are fixed to the inner walls of the first reinforcing plate 41 and the second reinforcing plate 42 respectively.

[0031] During implementation, the combined action of the first reinforcing plate 41 and the second reinforcing plate 42 inside the reinforcing cavity 44 improves the load-bearing capacity of the bearing body 1 and the outer ring 108. The reinforcing rib 43 greatly enhances the overall strength of the bearing body 1 and the outer ring 108, making the bearing body 1 and the outer ring 108 more durable and with a longer service life, thereby achieving the high load-bearing capacity function of the motor bearing.

[0032] Working Principle: In use, first place the bearing body 1 and outer ring 108 on the surface of the motor shaft. The user pushes the bearing body 1 with a tool, so that the bearing body 1 and outer ring 108 are fitted onto the surface of the motor shaft. When the motor is working, the motor drives the motor shaft to rotate, and the motor shaft drives the bearing body 1 to rotate on the inner wall of the outer ring 108. At this time, the bearing body 1 drives the ball body 104 to rotate on the inner wall of the outer ring 108. When the motor rotates and drives the bearing body 1 to rotate on the inner wall of the outer ring 108, some noise will be generated. At this time, the sound-absorbing plate 21 on the inner wall of the fixing groove 22 and the sound-absorbing cotton 23 can eliminate the noise generated between the motor shaft and the bearing body 1 during operation. The anti-detachment plate 24 improves the fitting accuracy between the bearing body 1 and the motor shaft, making the installation between the motor shaft and the bearing body 1 more secure, so as to realize the sound absorption and anti-detachment function of the motor bearing. Thus, the bearing body 1 can be stably installed between the motor shaft and the motor bearing during use, so that the motor bearing will not generate noise during use.

[0033] Subsequently, when the user assembles the bearing body 1 and the outer ring 108, the ball bearing cover 103 is placed between the bearing body 1 and the outer ring 108, causing the ball bearing cover 103 to move to one side of the ball bearing body 104. The ball bearing cover 103 drives the positioning clip 32 to automatically engage with the corresponding positioning slot 31, thus positioning and installing the ball bearing cover 103. At this time, the ball bearing cover 103 drives the first rubber pad 33 to move until it contacts the surface of the second rubber pad 34. Under the combined action of the first rubber pad 33 and the second rubber pad 34, the bearing body 1 and the ball bearing are positioned and installed. The protective covers 103 are sealed together. The user then tightens the bolts 105 on the surface of the ball bearing protective cover 103. Under the action of the bolts 105, the ball bearing protective cover 103 is installed inside the bearing body 1 and the outer ring 108. With the combined action of the second rubber pad 34 and the first rubber pad 33, dust and impurities can be prevented from entering the surface of the ball body 104, so as to achieve the function of sealing and dustproofing the motor bearing. This prevents dust from entering the surface of the ball body 104 through the gap between the bearing body 1 and the end cover 101 when the motor bearing is in use, thus affecting the rotational speed of the ball body 104.

[0034] Subsequently, the bearing body 1 and outer ring 108 require high load-bearing capacity during operation. Under the combined action of the first reinforcing plate 41 and the second reinforcing plate 42 inside the reinforcing cavity 44, the load-bearing capacity of the bearing body 1 and outer ring 108 is improved. Under the action of the reinforcing rib 43, the overall strength of the bearing body 1 and outer ring 108 is greatly improved, making the bearing body 1 and outer ring 108 more durable and with a longer service life, so as to realize the high load-bearing capacity function of the motor bearing. This allows the bearing body 1 and outer ring 108 to be greatly improved during use, making the motor bearing less prone to damage during long-term use, and finally completing the use of the motor bearing.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A motor bearing for small household appliances, comprising a bearing body (1), characterized in that: The bearing body (1) has an outer ring (108) on its surface. The inner walls of the bearing body (1) and the outer ring (108) rotate with each other. The bearing body (1) and the outer ring (108) have end caps (101) on their surfaces. The bearing body (1) and the outer ring (108) both have bearing holes (102) that pass through both ends at their center positions. The bearing body (1) has a ball bearing protective cover (103) inside. The inner wall of the bearing body (1) has a sound-absorbing and anti-detachment mechanism (2). The high load-bearing capacity mechanism (4) is composed of a first reinforcing plate (4). 1) The second reinforcing plate (42), the reinforcing rib (43) and the reinforcing cavity (44) are composed of the ball protective cover (103) and the inner wall of the bearing body (1) are provided with a sealing dustproof mechanism (3). The sealing dustproof mechanism (3) is composed of a positioning slot (31), a positioning clip (32), a first rubber pad (33) and a second rubber pad (34). The outer ring (108) is provided with a high load-bearing mechanism (4). The sound-absorbing and anti-detachment mechanism (2) is composed of a sound-absorbing plate (21), a fixing groove (22), a sound-absorbing cotton (23) and an anti-detachment plate (24).

2. The motor bearing for small household appliances according to claim 1, characterized in that: The bearing hole (102) has a top chamfer (111) with a chamfer specification of C0.4 at its top. The bearing hole (102) has a bottom chamfer (109) with a chamfer specification of C0.2 at its bottom. The outer ring (108) is equipped with equally spaced fasteners (107) on its surface. The fasteners (107) are symmetrically distributed around the bearing body (1) in a circular pattern. Both the body (1) and the fixing member (107) have an outer chamfer (106) on their surfaces. The chamfer specification of the outer chamfer (106) is C0.

3. The surface of the bearing body (1) is provided with ball bodies (104) at equal intervals. The ball bodies (104) rotate and cooperate with the inner walls of the bearing body (1), the outer ring (108) and the ball protective cover (103) respectively. The ball bodies (104) are in contact with the inner wall of the outer ring (108).

3. The motor bearing for small household appliances according to claim 1, characterized in that: The surface of the ball bearing protective cover (103) is threaded with bolts (105). One end of the bolt (105) passes through the ball bearing protective cover (103) and is threadedly fastened to the inner wall of the bearing body (1). The inner wall of the bearing body (1) is provided with an oil storage tank (110) for storing oil.

4. The motor bearing for small household appliances according to claim 1, characterized in that: The inner wall of the bearing body (1) is provided with a fixing groove (22). A sound-absorbing plate (21) is glued inside the fixing groove (22). A sound-absorbing cotton (23) is glued to the surface of the sound-absorbing plate (21) away from the fixing groove (22). An anti-detachment plate (24) for improving the friction between the bearing body (1) and the motor shaft is glued to the surface of the sound-absorbing cotton (23) away from the sound-absorbing plate (21).

5. The motor bearing for small household appliances according to claim 1, characterized in that: The surface of the ball bearing protective cover (103) is equipped with equal-spaced first rubber pads (33), and the surface of the bearing body (1) is equipped with equal-spaced second rubber pads (34). The surfaces of the first rubber pads (33) and the second rubber pads (34) are in contact.

6. The motor bearing for small household appliances according to claim 1, characterized in that: The inner wall of the ball bearing protective cover (103) is equipped with positioning clips (32), and the surface of the bearing body (1) is provided with equally spaced positioning slots (31), and the positioning slots (31) and the surface of the positioning clips (32) are engaged with each other.

7. The motor bearing for small household appliances according to claim 1, characterized in that: The inner wall of the outer ring (108) is provided with a reinforcing cavity (44), and the inner wall of the reinforcing cavity (44) is equipped with a first reinforcing plate (41) for improving the bearing capacity of the bearing body (1) and the outer ring (108).

8. The motor bearing for small household appliances according to claim 7, characterized in that: The inner wall of the reinforced cavity (44) is equipped with a second reinforcing plate (42). The inner wall of the reinforced cavity (44) is equipped with equally spaced reinforcing ribs (43) for enhancing the overall strength of the bearing body (1) and the outer ring (108). The surfaces of the reinforcing ribs (43) are fixed to the inner walls of the first reinforcing plate (41) and the second reinforcing plate (42), respectively.

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